methacholine chloride

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meth·a·cho·line chlor·ide

(meth'ă-kō'lēn klōr'īd),
A derivative of acetylcholine; a parasympatomimetic agent used as a bronchoconstrictor in testing for bronchial hyperreactivity.
Farlex Partner Medical Dictionary © Farlex 2012

methacholine chloride

A parasympathomimetic bronchoconstrictor similar to acetylcholine, used as an aerosol in different strengths in airway challenge tests.


This substance should be used only for diagnostic purposes under the supervision of a physician trained in and thoroughly familiar with all aspects of the technique. Emergency resuscitation devices and medication should be available to treat respiratory distress.
Medical Dictionary, © 2009 Farlex and Partners